Oil purifier



S. l. FEKETE OIL PURIFIER v July 1, l193.0.

' Filed Junez, 1926 ffl K 1pk/ENTER= byhumm'wfwgw ATTURNEY- l A25 scribed and shown has Patented July 1,1930

UNITED STATES 'PATElsIT oFjFlcE lAssIofNoru To HUDSON MoToR oArn coHroRATIoN F MICHIGANv 011. .rURIErER Application led June 28,

This invention relates to devices for vseparating solids carried' in suspension by liquids, and especially, although not exclusively, to means for purifying the lubricating oil of an internal combustion engine, The invention has for its object to provide a simple and eficient device for removing during its circulation to and from the engine the solid particles which are too fine to be 10 removed by the usual filtering devices. These particles, which are at least in part of 'a metallic nature, resulting from the wearing of the bearings, form av silt-like slime which tends to clog the oil passages, materially detracts from the lubricating qualities of the oil, and constitutes one of the causes of the necessity of frequent renewal of the oil.

The more particular objects of the invention, together with means whereby the latter 20 may be carried into effect, will bestbe underxstood from the following descriptionl of a preferred form thereof illustrated in the accompanying drawing. It will be understood however that the particular construction debeen chosen for purmerely, and that' the poses of exemplification the claims hereunto invention, as defined by i v appended, 'may be otherwise embodied without departure from the spirit and scope there- In said drawings:

Fig. 1 is a' diagrammatic view of a portion `V of the oil circulatmg system of an automobile engine, including an oil purifier embodying the invention, said purifier being shown part.- ly in vertical section. v

Fig. 2 is a section on the line 2-2, Fig. 1.

The lubricating system shown includes' which the oil is cir' the full line arrows parts of the engine pipes 10. and 11 through 4 culated in the direction of to and from the working respectivelyby a suitable oilpump generally indicated f the invention relates circulating system at any convenient point, preferably Abetween the pump and the crank case. v y y g Said purifier as shown comprises afsettling tank '.13 having a removable cover ..14 proat 12. The oil may.

purifier to which 50 vided with an oil inlet withv which the pipe 11 tachably secured from the oil L attracting sa/id particles be included in the 192.6. semina. 119,063.

communicates. The cover 14 is also preferably provided with a suitable breather or air vent 15 and with a filling opening normally closed by a plug to the tank by any suitable means, such as cap screws 17.

Depending within the tank 13 from the upper part thereof is a preferably annular baffle 18 ,herein shown as of conical form having an open but contracted lower end 19, said baiile being of less depth than the tank k13 so thatthelower end 19 of the formeris spaced above the bottom 2O of the latter.

The baiiie 18 is removably secured withinthe tank, being preferably edgeY with an annular clamped between the removable cover 14 and :tin ilriturned ange 22 at the upper edge of the The oil inlet through the cover 14 communicates with the interior ofthe baiiie 18 through a nozzle 23 so arranged as to direct the incoming oil in a helical path downwardformed at its upper v1y through said baiiie to the lower end19 thereof.

Immediately o tside the balie 18, or at the side thereof opposite the oil inlet, isa magnet 24 arranged towithdraw magnetic metallic particles from'the ward flow of the latter through the baffle by against the vinner sideof the' baiie. As shown, the magnet 24 cured, as. by bolts 25, directly to the outer face of thebaie so as to be removable with the latter from the tank.

The oil outlet from thel tank comprises av stand ipe 26 discharging through the bottom 20 an having an open upper end 27 disposed outside thel baflie 18, or at the opposite-side l thereof from the inlet, and jabove the lower end-19 of said baflie, so as to maintain the liquid in the tank substantially at tlie'level indicated.

The bottom a pet cock 28 through drained or the accumulatedisediment withdrawn from the bottom thereof.

In' operation, 4the* oil entering the tank is directed by the Xnozzle .23 in. a helical path 20 of the tank is 'provided-'wail which the tank can be' 16. Said cover may be de-l flange 21 which is" oil during the downi Ais a. permanent magnet having its poles s eo downwardly through the interior of the baille 18 to the lower end 19 thereof as indicated by the dotted arrows. This helical movement of the incoming oil causes the same, and particularly the metallic particles therein, to tend to hug the inner wall of the baille so as to bring said particles into the sphere of attraction of the magnet 24 which therefore causes said particles to be withdrawn from the liq'uid and to accumulate on the inner face of the baille. The oil leaving the lower end of the baille is directed downwardly toward the bottom of the tank from which it rises to the upper end 27 of the standpipe 26, overflowing into the latter and passing outwardly through the bottom of the tank. This reversal in the direction of ilow of the oil adjacent the bottom of the tank causes the non- Y magnetic particles and such magnetic partithe standpipe will have been cles as may not have been withdrawn by the magnet to be separated out by gravity and to settle in the bottom of the tank so that the oil rising in the latter and passing out through purified of all solids carried in suspension, either magnetic or otherwise.' The sediment accumulating in the bottom of the tank may be periodically withdrawn through the pet` cock 28, and the baille 18 with its magnet 24 may also from time to time be lifted out of the tank, by removing the cover 14, and freed of the accumulation of magnetic matter adhering thereto.

Having thus described my invention, I claim:

1. A` purifier for lubricating oil and the like including a settling tank, means includl in an inlet in the upper part of the tank and a aille within the tank for inducing downward flow therein, magnetic means above the bottom of said tank for withdrawing metallic particles from the oil during its downward ilow and retaining the same in said tank, and means for withdrawing the purified oil from the upper end of the tank.

2. A purifier for'lubricating oil and the like including a settling tank having an inlet in the upper part thereof and a baille in proximity to which the oil ilows downwardly from said inlet, a standpipe in said tank having an open upper end in the upper part of the tank and a lower end discharging through the bottom of the tank, and magnetic means for withdrawing metallic particles from the b 011 during its passage through the tank and causing them to adhere to said baille.

3. In a puriier for lubricatingoil and the like, a, tank, a baille removably supported within the tank, an inlet arranged to discharge the incoming oil against one side of said baille, and a magnet vcarried by said baille at the opposite side thereof and removable therewith.

4 In a purifier v-for lubricating oil and the i l1ke, a tank, an annular baille removably-supported within the tank, an inlet arranged to discharge the incoming oil within the baille, and a magnet in the tank immediately outside the baille. j

5. In a purifier for lubricating oil and the like, a tank, an annular baille supported within the tank, an inlet arranged to discharge the incoming oil within the upper part of said baille, said tank having anoutlet outside said baille and above the lower and a magnet in the tank immediately outside the baille.

6. A purifier for lubricating oil and the like including a settling tank, a baille removably supported within the tank, an inlet in the upper part of the tank arranged to discharge against one side of said baille and to induce a downward ilow in the tank, a magnet in the tank above the bottom thereof and at the opposite side of said baille, and means for withdrawing the puriiied oil from the upper part of the tank. 1

In a purifier for lubricating oil and the like, a tank having a remova le cover, an annular baille having a flange removably held between said tank and cover, said' cover havin@ an inlet within the upper part of said bazle, and a magnet carried by and removable with saidl baille.

In a purifier for lubricating oil and the like, a tank, a conical baille depending into said tank from` the upper part thereof and having an open lower end, an oil inlet withend thereof,

in the upper part of said baille, and a magnet arranged to withdraw metallic particles from the oil during its ilow downwardly through said baille. c

9. A purier for lubricating oil/and the like including a settling tank, a conicalbailie depending from the upper part of said tank and having an open lower end, an oil inlet net arranged to withdraw from the oil during its through said baille,l drawing the side said ba thereof.

v10. In a the like,

flow downwardly and means for withurifed oil from the tank oute and` abovethe lower end purifier for lubricating oil and a tank, a conical supported in the upper part of the tank, depending therein, and having an open lower end, an oil inlet within the upper part of said e, and a magnet in the tank immediately outside the baille.

`11. In a purifier for lubricating oil and the like, a tank, a conical baille depending from the upper part of said tank and having an open lower end, an oil inlet within the upper part of said baille arranged to direct the incoming oil in a helical path downwardly through said baille, and a magnet arranged to attract the metallic particles in the oil against 4theinner side of said baille and cause the same to adhere thereto.

12. A purifier for lubricating oil and the baille removably:y

105 within the upper part of said baille, a magmetallic particles,

like including a settling tank, a conical baiiie depending from the upper part of said tank and having a open lower end, an oil inlet within the upper part o said baiiie arranged to direct the incoming oil in a helical path4 4 downwardly through said baille, amagnet arranged to attract the metallic particles in the oil against the inner side 'of the baliie and cause the same to adhere thereto, and means t.'

l or'withdrawing the purified oil from the tank 'outside said baille and above the lower end thereof. i t r 13. A purifier for lubricating oil and the like includinga settling tank, aaremovable baffle of less depth than said tank depending thereinto from the upper part thereof, an' 011 inlet in the upper part of the tank at one side K of the baiie, a magnet ,carried by said bale .for withdrawing cmetallic particles from the oil during its downward flow past said baie and causingthem to adhere thereto, and an oil outlet at the opposite side of said baiiie and above the lwer end thereof.

14. A purifier for lubricating oil and the like including atank, a baie removably supported within said tank, an inlet arranged to discharge the incoming oil against said bailie and cause the same to-iow downwardly in proximit thereto, and a magnet arranged to with raw metallic particles from said oil and causethem to adhere to said baiiie.

15. A purifier for lubricating oil and the like including a tank, a baiiie removably supported within said tank, an inlet arranged to discharge the incoming oil against said baiiie and cause the` same to low downwardly in proximity thereto, and a magnet arranged to withdraw metallic particles from said oil and cause them to adhere to said baiiie', said s ,in magnet being carried by and removable with said baiie.

In testimony w ereof I affix my si ature.

STEPHEN I. FE TE. 

